Frequency domain identification of grinding stiffness and damping

Leonesio, Marco; Parenti, Paolo; Bianchi, Giacomo

doi:10.1016/j.ymssp.2017.02.028

Cited by 10 publications

(4 citation statements)

References 30 publications

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“…In a future study, the frequency domain analysis method proposed by Leonesio et al [ 37 ] could be used to further study the equivalent stiffness and damping in the machining of ICPECG special machine tools, to provide a basis for avoiding grinding chatter in the processing.…”

Section: Main Technical Performances Of the Special Machine Toolmentioning

confidence: 99%

Structural Design of a Special Machine Tool for Internal Cylindrical Ultrasonic-Assisted Electrochemical Grinding

Jiao

Bie

et al. 2023

Micromachines

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During the process of internal cylindrical ultrasonic-assisted electrochemical grinding (ICUAECG), both the workpiece and the conductive grinding wheel are rotating, the machining space is closed and narrow, the electrolyte is difficult to spray into the machining area, and the insulation between the workpiece and the machine bed is challenging. According to the machining characteristics of ICUAECG, the structure of a special machine tool was designed to mitigate these problems. In particular, the rotation, electrolyte supply, electric connection, and insulation modes of the workpiece clamping parts were studied, yielding a novel workpiece clamping- and rotating-device design. This structure can fully use the internal space of the hollow spindle of the machine tool, effectively reduce the external moving parts, and achieve the appropriate liquid injection angle of the electrolyte. The ultrasonic vibration system and its installation mechanism, the dressing device of the conductive grinding wheel, and the electric grinding spindle-mounting and -fixing device were analyzed in detail. Then, a special machine tool for ICUAECG was designed, the operability and feasibility of which were verified by experiments involving conductive grinding wheel dressing and ICUAECG.

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Section: Main Technical Performances Of the Special Machine Toolmentioning

confidence: 99%

Structural Design of a Special Machine Tool for Internal Cylindrical Ultrasonic-Assisted Electrochemical Grinding

Jiao

Bie

et al. 2023

Micromachines

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“…Moreover, RCSA also has great application in the prediction of stability lobe diagram (Leonesio et al, 2017). Yu et al proposed a method to obtain the stiffness and mass matrix of variable cross-section parts, and obtained the FRF at the tool tip by combining RCSA (Yu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Receptance coupling substructure analysis based FRF modeling for multi-segment shell with nonlinear joint interface

Wang

Liu

Zhang

2023

Journal of Vibration and Control

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Multi-segment shell typical of underwater vehicles is currently important underwater equipment. Stealth performance is a key indicator to improve the working capacity of underwater vehicles. Low-noise design is an important means to improve stealthy performance. Accurate and effective identification of its structure Frequency Response Function (FRF) is the premise of low-noise design. However, the multi-section shell joint interface has many connection points, complex transmission path and typical nonlinear characteristics, which challenges the acquisition of its structural FRF. The Receptance Coupling Substructure Analysis (RCSA) is used to segment the multi-stage shell, which can realize the integration of finite element method and experimental method, and provide an effective way to obtain the FRF of multi-segment shell. At the same time, the multi-segment shell is a typical thin-wall structure, and its actual buckling process under impact is a nonlinear (large deformation) process. Therefore, the nonlinear joint interface is constructed based on linear connection, and the RCSA for nonlinear joint interface is studied. On the basis of accurately obtaining the FRF, it is of theoretical and application significance to study the low noise design of shell.

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“…Cao et al [12] established a new model for the surface topography of the grinding process to discuss the effects of the wheel vibration amplitude, wheel grit number, as well as process parameters on the surface waviness and roughness. Leonesio et al [13] presented a novel frequency domain approach for identifying the process parameters, exploiting in-process system response, which measured via impact testing. Liu et al [14] analysed the process parameters and stability grinding conditions affecting the grinding stability of the bliskblade belt.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Process Parameter Effects on Vibrations in the High-Speed Grinding of a Camshaft

Liu

Deng

et al. 2020

SV-JME

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The capacity to minimize vibrations in grinding by the selection of appropriate process parameters is a significant benefit in the process optimization of cam grinding. This paper presents survey methods to characterize and quantify the vibrations and waviness in a camshaft grinding application. First, a modal analysis was conducted to study the dynamic characteristic of a camshaft grinding machine. Then, developed methods were applied to study the influences of various parameters on vibrations in the high-speed grinding of a camshaft. Furthermore, the influence of each grinding process condition on surface waviness in high-speed camshaft grinding was studied. The results show that the vibrations and the surface waviness change with the increase of grinding depth, and an appropriate grinding wheel speed combined with a workpiece speed has, for most grinding conditions, a reducing effect on vibration magnitudes and waviness. Finally, the specific indications about the optimal grinding process parameters in terms of dynamic characteristics of the grinding machine were given, and the speed ratio=1.2 is a novel choice.

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Frequency domain identification of grinding stiffness and damping

Cited by 10 publications

References 30 publications

Structural Design of a Special Machine Tool for Internal Cylindrical Ultrasonic-Assisted Electrochemical Grinding

Structural Design of a Special Machine Tool for Internal Cylindrical Ultrasonic-Assisted Electrochemical Grinding

Receptance coupling substructure analysis based FRF modeling for multi-segment shell with nonlinear joint interface

Experimental Analysis of Process Parameter Effects on Vibrations in the High-Speed Grinding of a Camshaft

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